Danikiewicz, A.;                     Hudzik, B.;                     Nowak, J.;                     Kowalska, J.;                     Zieleń-Zynek, I.;                     Szkodzinski, J.;                     Naung Tun, H.;                     Zubelewicz-Szkodzinska, B.    
        Serum Gamma Glutamyltransferase Is Associated with 25-Hydroxyvitamin D Status in Elderly Patients with Stable Coronary Artery Disease. Int. J. Environ. Res. Public Health 2020, 17, 8980.
    https://doi.org/10.3390/ijerph17238980
    AMA Style
    
                                Danikiewicz A,                                 Hudzik B,                                 Nowak J,                                 Kowalska J,                                 Zieleń-Zynek I,                                 Szkodzinski J,                                 Naung Tun H,                                 Zubelewicz-Szkodzinska B.        
                Serum Gamma Glutamyltransferase Is Associated with 25-Hydroxyvitamin D Status in Elderly Patients with Stable Coronary Artery Disease. International Journal of Environmental Research and Public Health. 2020; 17(23):8980.
        https://doi.org/10.3390/ijerph17238980
    
    Chicago/Turabian Style
    
                                Danikiewicz, Aleksander,                                 Bartosz Hudzik,                                 Justyna Nowak,                                 Joanna Kowalska,                                 Iwona Zieleń-Zynek,                                 Janusz Szkodzinski,                                 Han Naung Tun,                                 and Barbara Zubelewicz-Szkodzinska.        
                2020. "Serum Gamma Glutamyltransferase Is Associated with 25-Hydroxyvitamin D Status in Elderly Patients with Stable Coronary Artery Disease" International Journal of Environmental Research and Public Health 17, no. 23: 8980.
        https://doi.org/10.3390/ijerph17238980
    
    APA Style
    
                                Danikiewicz, A.,                                 Hudzik, B.,                                 Nowak, J.,                                 Kowalska, J.,                                 Zieleń-Zynek, I.,                                 Szkodzinski, J.,                                 Naung Tun, H.,                                 & Zubelewicz-Szkodzinska, B.        
        
        (2020). Serum Gamma Glutamyltransferase Is Associated with 25-Hydroxyvitamin D Status in Elderly Patients with Stable Coronary Artery Disease. International Journal of Environmental Research and Public Health, 17(23), 8980.
        https://doi.org/10.3390/ijerph17238980